Figure 2

XRD patterns and corresponding surface SEM images of the CH3NH3PbI3 films fabricated from different deposition rates of PbI2: (a and d) R1, (b and e) R2 and (c and f) R3. The scale bars indicate 500 nm.
XRD patterns and corresponding surface SEM images of the CH3NH3PbI3 films fabricated from different deposition rates of PbI2: (a and d) R1, (b and e) R2 and (c and f) R3. The scale bars indicate 500 nm.